On November 2nd, Prof. Phillip Bouyer from the Institut d’Optique Graduate School in Bordeaux visited SIOM. Prof. Liu Liang, deputy director of Key Laboratory of Quantum Optics, CAS, hosted the Qinghe Seminar for Prof. Phillip Bouyer. In the report entitled “Technologies for ultra-cold atoms in space”, Prof. Phillip Bouyer introduced a new laser technique based on telecom fiber amplifier and single pass periodically poled nonlinear crystal. This laser technique has already been applied in atomic gravimeters and atomic clocks, which considerably enhanced the stability for the experiments of cold atom physics. He also displayed a serial studies on atom interferometry and quantum gas under microgravity environment, including atomic gravimeter in parabolic flight (ESA ZERO-G), fast generation of Bose-Einstein condensate with modulated optical dipole trap, and multi-dimensional bias free inertial sensors. The related results have been published on such journals as Nature Communication, Physical Review Letters, et al. Philippe Bouyer is research director at CNRS and deputy director of the Institut d’Optique Graduate School in Bordeaux. He received his doctorate at Ecole Normale Supérieure in 1995 and was then a postdoctoral fellow at Stanford during which he worked on atom interferometer-based inertial sensor experiments. He joined CNRS and the Institut d’Optique Graduate School in 1996, where he worked on atom lasers and Anderson localization with cold atoms. His current interests are the study of quantum simulators with ultracold atoms and the development of atom interferometers for testing general relativity in space or detecting gravity fields and gravitational waves underground. He is the recipient of the 2012 Louis D award of the French academy, APS fellow and OSA senior member.